One advantage of using hello as a greeting is that it is agnostic of social rank. This made it the perfect choice for greeting people of unknown social rank on the phone.
Having traveled the world quite a bit I can attest to the ubiquity of the word hello… almost everywhere I go it is understood. ‘OK’ has a similar ubiquity, and it is interesting that both words are relatively new additions to the English (universal?) language.
It feels as if "hello" is fading out again. It was never completely universal. Where I grew up, people still say "aye aye" (not on a ship btw), along with the usual "good whatever".
I did once read a Christian complaining about it because it had the word "Hell" in it. A minority opinion of course.
Having traveled the world quite a bit I can attest to the ubiquity of the word hello… almost everywhere I go it is understood. ‘OK’ has a similar ubiquity, and it is interesting that both words are relatively new additions to the English (universal?) language.
I did once read a Christian complaining about it because it had the word "Hell" in it. A minority opinion of course.